indefinite-integration

Question: $\int_{{}}^{{}}{{{\sin }^{3}}x\ dx}$ is equal to



1) ${{\sin }^{2}}x+1$
2) $\sin {{x}^{2}}+{{x}^{2}}+1$
3) $\frac{{{\cos }^{3}}x}{3}-\cos x$
4) $\frac{1}{4}{{\sin }^{4}}x-\frac{3}{4}{{\sin }^{2}}x$
Solution: Explanation: No Explanation
Integration by substitution

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